[The notion gives Papyrus pause. It's not a worrying idea, or at least he's not worried by it. It's not a scary idea, or at least he's not scared by it. But now that he pauses to ponder Sans's thoughts, he notices that internal personality framework flagging him with notes of atypical behavior and thoughts. Normally he would be worried, scared, and so on, huh? Right now, it's hard to imagine those feelings.]

...Hmmm. Maybe you're right! That doesn't sound ideal. I like being around, and don't want you discovering my dust. Again. [There's no hesitations between the sentences, no points where he's visibly continuing to think things through as his worries guide him to possibilities - he thought things through to a given point, and now he's contentedly poking at related notions without any particular fear of Sans's reactions.] You probably can't heal dust... Do you think healing would charge me?